Hot-water heater.



PATENTED APR. 16, 1907'.

2 SHEETS-SHEET l.

Rdxn

PATENTED APR. 16

T. H. CAMPBELL.

HOT WATER HEATER.

APPLIoATIoN FILED DEo.s,19os.

2 SHEETS-SHEET 2.

end of the sinuous coil of tubing 32 passes out of the casingand outer shell 8, as at 34,

and, together with the ends of the coils of tubing 28 and 29, are connected to a pipe 35, which supplies water to said coils of tubing from a cylinder 36, which receives wat er from a main supply-pipe 37, valves 38 and 39 controlling the passage of water into the coils of tubing. Tle pipe is provided witlL a drain-cock 40 in order to cleanse the cylinder 36 and its ap urtenant parts.

The upper end o the sinuous coil of tubing 32 passes out ofthe dome.16, as at 41, and is connected by a pipe 42 with a pipe 43. l

The upper ends of tle standards 25 are provided with brackets 44,- which support a coil of tubing 45 Witln'n the hood 22, said coil of tubing communicating with the pipe 35 by a pipe 46, which passes downwardly within the easing 20'and extends through the casing and the outer shell 8, as 'at 47. The upper end ofthe coil of tubing 45 passes through the dome 16 and is connected by a pipe 48 with the pipe 43. The pipe 43 connects with a pipe 49, with whichthe ends of the coils of tubing 28 and 29 connect. In tln's manner the Water Which passes through the coils 28.and 29, also the coils 32 and 45, will pass Vinto a common pipe 43, which may lead recessed, as at 53 53, to receive `1s used, whereby to secure e casings it will be necessary the same, thereby glving to the place or compartment Where .the heated water is to be used. The circumferentially-formed ribs 3 are provided with openings 50, and secured upon said ribs by screw-bolts 51, which pass through the'openings 50 of said ribs, are circular burner-casings 5,2, said casings being arranged between the coils of tubing 28,29 32 andthe casing 20, whereby both sides of the coils of tubing Will be exposed to the heat given oi by the burner-casing. Each burnercasing is substantially channel-shaped in cross-Section and has its upper inner sides the edges of a 54. The strip or than the casing 52, the plates upon the to slightly curve it a convex burner or upper surface, the resiliency of the strips or plates tending to hold the plates upon the casmgs; but to further insure their engage- `ment `With the casin s I 'employ strips' 55,

perforated plate or stripl plate 54, of a greater Widt which are secured to t e sides of each casing,

as clearly illustrated in Fig. '7 of "the draw-A ings. 'Ifhe burner-casings 52 are rovided with depending pipes 56, each of w ich carries a regulating-valve 57 and said pipes are adapted to communicate with a pipe 58, mounted beneath the base-plate 1. Ar-I ranged transversely of the burner-easing is a pilot-light tubing 59, a portion of wlfich extends t rough the casing 20 and the slell 8 to provide an exterior pilot-light 60. The pilot-light tubing 59 is connected by a pipe .Upon one side of the base-plate 1, adjacent,

to the pipe 58, I mount a valve 61', which controls the main gas-supply pipe 62. The valve 61 is in communication with the pipe 58 by a piece of tubing 63. 36 is mounted a piston 64, which is adapted to actuat'e a pivoted lever 65 to open and close the valve 61. A pilot-light 66 is connected with the valve 61 or may be connected .by a pipe 68 with the pilot-light tubing 59, within the heater.

The'upper end of the cold-air-draft 'pipe 33 is provided with an inverted-cone-shaped deilector-head 68', which is adapted to deflect the products of combustion toward the hood '22 and when they have been ejected from said hood to deflect the products outwardly -to the sides of the outer shell o1l dome of the heater.

The outer shell S, together with the casing 20, may be provided with suitable doors 69 in order that easy access may be had to the.

burner-casing ofthe heater or any of the parts thereof.

By the construction of my improved heater it will be observed that each coil of tubing within the heater can be used independently of the others. Consequently the capacity for heating water can be increased or decreased, according to -the uantities of hot water desired. It is a Wllown .fact that certain residences require a greater quantity ofhot Water oncertain days than other days. Therefore I have constructed my improved heater whereby one coil of tubing will only be operated, together with one burner-casing, when a small quantity (if heated water is de- Iri the accompanying drawings I have illustrated a novelA form' of thermostat for controlling the burners of the heater; but this therinostat'ivill be the subject-matter of another application, andtherefore I desire it to be understood that a conventional form of `thermostat can be readily-used, besides the independent valves for controlling the operation of the heater.

I preferably construct my improved heater of sheet metal and drop-forge castings where necessary, and the construction and simplicityof the parts of the heater permit of the same being easily and quickly assembled and operated to produce any desired quantity of hot water.

Such changes in the construction and operation of my improved heater as are permissible by the appended claims may be resorted to without departing from the spirit and scope of the invention. What I claim, and desire ters Iatent, is

1. ,fi heater embodying a base, shells supported by said base, coils of tubing arranged withi's said shells and surrounding one hn- 61 with the pipe 5S, beneath the base-plate. l other, burners located between said coils 0f In the cylinderto secure by Lettubing, means to supportV said coils of tubcated between said coils of tubing, means to ing, and means to support said burners, subsupport said coils of tubing, and means to zo stantially as described. support said burners substantially as de- 2. A heater embodying a base, shells supscribed. ported by said base, coils of tubing arranged l 4. A heater embodying the base and hav- Within sai/d shells, said coils of tubing being l ing a central o ening passing therethrough, arranged one Within the other, and having a a plurality of s ells arranged one Wit-hin the 25 common outlet, burners located between other, Coils of tubing supported by said said coils oi tubing, means to support said l coils and tubing and means to support said 7 burners.

3. A heater having a central opening passing vertically therethrough, said heater embodying the base,

shells, burners arranged between said shells and coils of tubing, and means for supporting said burners substantially as described.

In testimony Whereol2 I affix my signature 3o I. in the presence of two Witnesses. shells supported by said I base, coils of tubing arranged Within said y THOMAS H' CAMPBELL' i shells, saidI coils being arranged one Within j Witnesses:

the other, the innermost of said coils .sur-

K. H. BTLER,

rounding said central opening, burners lol' E. E. POTTER. 

